Describes a set to a device (1) for the Administration of Medicine, which comprises a Shell (4), which contains a Plurality of doses of a Medicine, and a piston rod (9), configured and arranged to expel from the medicine Cartridge (4) during an operation of Ad Administration of Medicine of the wholeSo that the piston rod (9) comprises a thread (9a).The package includes, in addition, a nut Member (13), so that the nut Member (13) is configured and arranged to be rotated with respect to the piston rod (9) about a rotation AXIS (7) a dose adjustment during operation of the set.So the nut Member (13) is axially moved along the piston rod (9) from a starting position to a final position on the piston rod (9), due to a Mechanical Cooperation Member (13) with the screw Nut (9a).The package includes, in addition, a Stop mechanism of last dose, configured and arranged to prevent a user to adjust a dose exceeding a remaining amount of medication in the cartridge (4) so that the stop mechanism comprises the last dose A First member of Interaction (16) and at least one Second Member (17), InterActionProvided by the piston rod (9), and at least a First Stop Member (18) and at least one second stop Member (19) provided by the nut Member (13), so that members of Interaction (16, 17) and members (18, Cap19) are configured to cooperate mechanically when the nut Member (13) is in the final position with regard to the piston rod (9), which prevents any additional Movement relative to the nut Member (13) and the piston rod (9) to adjust A dose of Medicine. It outlines a device (1) for Administration of medication.Se describe un conjunto para un dispositivo (1) de administración de medicamento, que comprende un cartucho (4), que contiene una pluralidad de dosis de un medicamento, y un vástago (9) de pistón, configurado y dispuesto para expeler medicamento desde el cartucho (4) durante una operación de administración de medicamento del conjunto, de tal manera que el vástago (9) de pistón
